Thorne Amino Complex Clinically-Validated EAA and BCAA Powder for Pre or Post-Workout Promotes Lean Muscle Mass and Energy Production NSF Certified for Sport Lemon Flavor 8 Oz 30 Servings
ThorneAnalysis updated August 2026 · How Scout scores
At a glance
Summary
This amino acid supplement features a clean formulation with essential and branched-chain amino acids that support muscle growth and recovery. It uses natural sweeteners like stevia and turmeric for flavoring, avoiding artificial additives and sweeteners. The minimal use of additives and the absence of harmful ingredients contribute to its high rating, making it a well-formulated option for pre or post-workout supplementation.
Key ingredients 15
L-CystineGood
L-Cystine is an amino acid that plays a crucial role in protein synthesis and detoxification. It is a precursor to glutathione, a powerful antioxidant that helps protect cells from oxidative damage. This amino acid supports immune function and skin health.
Benefits
Supports antioxidant production and immune health.
L-HistidineGood
L-Histidine is an essential amino acid important for growth and tissue repair. It is a precursor to histamine, which plays a role in immune response and gastric acid secretion. L-Histidine also contributes to the production of red and white blood cells.
Benefits
Essential for growth, tissue repair, and immune function.
L-IsoleucineGood
L-Isoleucine is a branched-chain amino acid (BCAA) that is important for muscle metabolism and energy production. It helps in muscle repair and recovery, making it beneficial for athletes and active individuals. L-Isoleucine also supports hemoglobin production.
Benefits
Supports muscle repair and energy production.
L-LeucineGood
L-Leucine is a key BCAA that stimulates muscle protein synthesis and promotes muscle growth. It is particularly important for athletes and those engaging in resistance training. L-Leucine also helps regulate blood sugar levels.
Benefits
Promotes muscle growth and regulates blood sugar.
L-LysineGood
L-Lysine is an essential amino acid that plays a role in collagen formation and calcium absorption. It supports immune function and helps prevent cold sores caused by the herpes virus. L-Lysine is also important for protein synthesis.
Benefits
Supports collagen formation and immune health.
L-MethionineGood
L-Methionine is an essential amino acid that acts as a building block for proteins and peptides. It is involved in the synthesis of other amino acids and is crucial for liver health and detoxification. L-Methionine also supports hair and nail health.
Benefits
Supports liver health and detoxification.
L-PhenylalanineGood
L-Phenylalanine is an essential amino acid that is a precursor to neurotransmitters like dopamine and norepinephrine. It plays a role in mood regulation and cognitive function. L-Phenylalanine is also important for the production of thyroid hormones.
Benefits
Supports neurotransmitter production and mood regulation.
L-ThreonineGood
L-Threonine is an essential amino acid necessary for protein synthesis and the production of collagen and elastin. It supports immune function and gut health by maintaining the mucosal barrier. L-Threonine also aids in fat metabolism.
Benefits
Supports collagen production and immune function.
L-TryptophanGood
L-Tryptophan is an essential amino acid that serves as a precursor to serotonin, a neurotransmitter that regulates mood and sleep. It is also involved in the production of melatonin, which helps regulate the sleep-wake cycle. L-Tryptophan supports emotional well-being and relaxation.
Benefits
Supports mood regulation and sleep quality.
L-TyrosineGood
L-Tyrosine is a non-essential amino acid that is a precursor to neurotransmitters such as dopamine, norepinephrine, and epinephrine. It helps improve mental performance and focus, especially under stress. L-Tyrosine also supports thyroid function.
Benefits
Enhances mental performance and supports thyroid health.
L-ValineGood
L-Valine is a BCAA that is important for muscle growth and tissue repair. It helps maintain nitrogen balance in the body and is involved in energy production. L-Valine is essential for athletes and those engaging in physical activity.
Benefits
Supports muscle growth and energy production.
Turmeric PowderGood
Turmeric Powder is derived from the turmeric root and contains curcumin, a compound with anti-inflammatory and antioxidant properties. It supports joint health and may improve brain function. Turmeric is widely used for its potential health benefits.
Benefits
Offers anti-inflammatory and antioxidant benefits.
Citric AcidNeutral
Citric Acid is a natural preservative and flavor enhancer commonly used in food and supplements. It is generally recognized as safe and helps improve the taste of products. Citric Acid also plays a role in the Krebs cycle, a key metabolic pathway.
Benefits
Enhances flavor and acts as a preservative.
FlavorsNeutral
Flavors are added to enhance the taste of the product, but the specific components are not disclosed. While they improve palatability, the lack of transparency can be a concern for some consumers. The impact on health is generally neutral unless artificial components are present.
Risks
Potential concern due to lack of transparency in specific flavor components.
Benefits
Improves product palatability.
Rebaudioside ANeutral
Rebaudioside A is a steviol glycoside derived from the stevia plant, used as a natural, zero-calorie sweetener. It is considered safe and does not affect blood sugar levels. Rebaudioside A is a popular alternative to artificial sweeteners.
Benefits
Provides sweetness without calories or blood sugar impact.
Processing
Processed Culinary Ingredients
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